Toshiyuki “Tosh” Seino (born October 1938) is an American former competitive judo athlete. Seino was born in Hawthorne, California, United States.[1] After spending several years incarcerated in an internment camp at California's Tule Lake during World War II, he and his family moved to Japan.[1] Seino won numerous judo competitions at both the national and international levels,[1] beating heavyweight Olympian George Harris, despite being a middleweight.[2] He returned to the United States at age 20. Seino was an AAU National Champion in Judo.[3] Seino enlisted in the US Air Force in 1959 and served as a self defense instructor.[4] Seino competed in three Judo World Championships.[5]